Asphalt aqueous emulsion and method for preparation

A water emulsion and bitumen technology, which is used in water treatment and refining, tar bitumen/petroleum bitumen/natural bitumen processing, petroleum industry, etc. problem, to achieve the effect of easy control, uniform dispersion and simple production process

Active Publication Date: 2005-07-06
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the butane and pentane solvent deasphalting process can obtain more light oil, the soft components of asphalt left after processing are too small, which increases the softening point of asphalt, resulting in the util

Method used

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  • Asphalt aqueous emulsion and method for preparation

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Experimental program
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Effect test

Example Embodiment

[0052] Example 1

[0053] A mixture of 620 grams of butane solvent deoiled asphalt raw material (see Table 1 for its properties) and 88 grams of heavy deasphalted oil was mixed, and the mixture was heated to 200°C. Add 4 grams of emulsifier sodium oleamido methoxybenzene sulfonate (molecular formula C) to 281.2 grams of water 25 H 40 NNaO 5 S, the brand is MA, produced by Shanghai Auxiliary Factory, the same below) and the mixture of sodium lignosulfonate (brand L-1, produced by Fushun Petrochemical Research Institute) (the weight ratio of the former to the latter is 3 :1), 5 grams of auxiliary NH 4 Cl (produced by Beijing Second Chemical Plant) and 1.8 grams of stabilizer polyvinyl alcohol (brand name: 1788, produced by Beijing Organic Chemical Factory) were dissolved to obtain an aqueous solution, and the aqueous solution was heated to 75°C. The above mixture and the aqueous solution were thoroughly mixed with a homogenizer (model M50, produced by Shanghai...

Example Embodiment

[0059] Example 2

[0060] A mixture of 550 grams of pentane solvent deoiled asphalt feedstock (see Table 1 for its properties) and 150 grams of catalytic cracking oil slurry was mixed, and the mixture was heated to 240°C. Add 15 grams of emulsifier C18 sodium alkyl sulfate (produced by Jinling Petrochemical Nanjing Alkylbenzene Plant) and 3 grams of auxiliary K to 280.5 grams of water. 2 SO 4 (Produced by Beijing Second Chemical Plant) and 1.5 grams of stabilizer polyvinyl alcohol (trade name: 0486, produced by Beijing Organic Chemical Factory) were dissolved to obtain an aqueous solution, and the aqueous solution was heated to 80°C. The above mixture and the aqueous solution were thoroughly mixed with a homogenizer to obtain an asphalt water emulsion product. The composition and properties of the product are shown in Table 4.

[0061] The product has no precipitation within 7 days. Although precipitation or stratification gradually occurs after being placed...

Example Embodiment

[0062] Example 3

[0063] The temperature of 650 grams of propane solvent deoiled asphalt raw material (see Table 2 for its properties) was raised to 140°C. Add 15 grams of emulsifier C18 alkyl diethyl hydroxyethyl ammonium nitrate (brand name SN, produced by Shanghai Auxiliary Factory), 2 grams of auxiliary Mg into 329 grams of water 2 SO 4 (Produced by Beijing Second Chemical Plant) and 4 grams of stabilizer cellulose (produced by Beijing Synthetic Detergent Factory) are dissolved to obtain an aqueous solution, and the aqueous solution is heated to 60°C. The above-mentioned asphalt raw material and the aqueous solution were fully mixed with a colloid mill (model W4, produced by Wenzhou colloid mill, the same below) to obtain an asphalt water emulsion product. The composition and properties of the product are shown in Table 4.

[0064] The product has no precipitation within 7 days. Although precipitation or stratification gradually occurs after being place...

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Abstract

The invention disclose an asphalt aqueous emulsion and method for preparation, wherein the aqueous emulsion comprises 40-78.7 wt% of asphalt raw material, 1-20 preferably 1-15 wt% of soft component, 20-50 wt% of water, 0.1-4 wt% emulsifying agent, 0.1-6 wt% of adjuvant and 0.1-4 wt% of stabilizing agent.

Description

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Claims

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Application Information

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Owner CHINA PETROLEUM & CHEM CORP
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